return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHNCH2 (2H-Azirine)

using model chemistry: B2PLYP=FULLultrafine/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/6-311G**
 hartrees
Energy at 0K-132.595212
Energy at 298.15K 
HF Energy-132.425652
Nuclear repulsion energy63.622551
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP=FULLultrafine/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3232 3232 1.97      
2 A' 3126 3126 20.99      
3 A' 1704 1704 7.80      
4 A' 1521 1521 0.10      
5 A' 1308 1308 10.22      
6 A' 1052 1052 0.06      
7 A' 1002 1002 58.31      
8 A' 675 675 11.48      
9 A" 3219 3219 22.85      
10 A" 1123 1123 1.55      
11 A" 989 989 0.33      
12 A" 802 802 16.75      

Unscaled Zero Point Vibrational Energy (zpe) 9876.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9876.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/6-311G**
ABC
1.18787 0.74059 0.50276

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.868 -0.166 0.000
C2 0.000 0.745 0.000
C3 0.659 -0.535 0.000
H4 0.040 1.826 0.000
H5 1.039 -0.961 0.922
H6 1.039 -0.961 -0.922

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25811.57072.18852.26212.2621
C21.25811.44011.08122.20022.2002
C31.57071.44012.44071.08401.0840
H42.18851.08122.44073.10083.1008
H52.26212.20021.08403.10081.8431
H62.26212.20021.08403.10081.8431

picture of 2H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 70.837 N1 C2 H4 138.505
N1 C3 C2 49.163 N1 C3 H5 115.666
N1 C3 H6 115.666 C2 N1 C3 60.000
C2 C3 N1 49.163 C2 C3 H5 120.656
C2 C3 H6 120.656 C3 C2 H4 150.659
H5 C3 H6 116.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability